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Artykuły w czasopismach na temat „UCON MODEL”

Autor: Grafiati

Data publikacji: 11 września 2023

Data aktualizacji: 31 lipca 2025

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1

Wu, Hai Ying. "Usage Control Model Based on Regular Grammar." Advanced Materials Research 433-440 (January 2012): 4590–96. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.4590.

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Traditional access control models through search Access Control List(ACL) to authorize [1-3]. Traditional access control models fail to satisfy the modern information system, thus Usage Control( UCON ) models were produced and fundamentally enhanced the traditional access control. The UCON models are considered as the next generation access control models. This paper is organized as follow. Section 1 introduces the Usage Control models. Section 2 introduces Regular Grammar ( RG ). Section 3 gives the RG of the 16 core ABC UCON models. Section 4 gives the RG of on-line antivirus procedure. Fina

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Jiang, Ze Tao, and Jia Fei He. "Research on an UCON Extension Model Applicable to Industrial Control." Applied Mechanics and Materials 20-23 (January 2010): 470–76. http://dx.doi.org/10.4028/www.scientific.net/amm.20-23.470.

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Although UCON makes a unified framework for research on modern access control, it is not applicable enough due to fact that it only gives out a conceptual model. In this paper, analysis and extension have been made on UCON, role and task factors are introduced to it and combined with the conception of domain, an UCON extension model—UCONTR model, which is applicable to industrial control, is proposed. Its formalized description is given in the next step. Finally, the application of UCONTR on distributed control system for heat treatment is introduced in detail.

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Gan, Sheng Ke, and Feng Bin Wang. "An Extended UCON Model Supporting Distributed Multidomain Applications." Advanced Materials Research 433-440 (January 2012): 5616–19. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.5616.

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This paper presents security rules summarized from the analysis of an distributed multidomain application. The paper proposes extensions to the core UCON model to address typical problems and requirements in the distributed multidomain environment such as: dynamic attributes, delegation authorization mechanism. The paper gives the definition of the important part of the extended UCON model such as: the basic sets, the system assertions and the actions.

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4

Park, Jaehong, and Ravi Sandhu. "The UCON ABC usage control model." ACM Transactions on Information and System Security 7, no. 1 (2004): 128–74. http://dx.doi.org/10.1145/984334.984339.

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Xu, Xiao Lin. "Research on Task-Based Usage Control Core Models in Workflow for Manufacturing Environment." Advanced Materials Research 886 (January 2014): 378–81. http://dx.doi.org/10.4028/www.scientific.net/amr.886.378.

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With widespread application of Workflow (WF) management system, problem in access control becomes more and more important. At present, the TBAC Model and TRBAC Model cannot satisfy the requirements of access control in Modern information systems. Therefore, the task in WF is the center which combine UCON model with WF, and establish the Task-Based Usage Control (TUCON) Model in which the access control of WF use the UCON Model.

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Chang, He, Yang Lu, and Yantao Sun. "Simultaneous Prediction, Determination, and Extraction of Four Polycyclic Aromatic Hydrocarbons in the Environment Using a UCON–NaH2PO4 Aqueous Two-Phase Extraction System Combined with High-Performance Liquid Chromatography-Ultraviolet Detection." Molecules 27, no. 19 (2022): 6465. http://dx.doi.org/10.3390/molecules27196465.

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In this paper, a new aqueous two-phase extraction system(ATPES) consisting of UCON (poly(ethylene glycol-ran-propylene glycol) monobutyl ether)–NaH2PO4 was established, and four trace polycyclic aromatic hydrocarbons (PAHs: fluorene, anthracene, pyrene and phenanthrene) in water and soil were analyzed by high-performance liquid chromatography (HPLC)–ultraviolet detection. In the multi-factor experiment, the central composite design (CCD) was used to determine the optimum technological conditions. The final optimal conditions were as follows: the concentration of UCON was 0.45 g·mL−1, the conce

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7

Tang, Jia. "Research on Design of Network Platform Based on UCON Access Control Model." Applied Mechanics and Materials 543-547 (March 2014): 4589–92. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.4589.

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Network teaching as a new teaching methods, taking full advantage of computer, networking and multimedia technologies, making teaching behaviors across time and space constraints, has a great deal of flexibility and interactivity. However, access control is very important in network teaching platform, and it decides the security of such platform. In this paper, we analyze the UCON access control model in detail, propose a UCON based access control model, and design a network teaching platform with the proposed access control model.

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8

Dai, Chang Ying, Wen Tao Gong, and Jing Liu. "Access Process of Data-Flow in Cross-Domain Usage Control Model Based on XACML." Advanced Materials Research 143-144 (October 2010): 1275–79. http://dx.doi.org/10.4028/www.scientific.net/amr.143-144.1275.

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With the rapid development of information technology, more and more requesters need accessing the services in different access domains, which make the access process in cross-domain become more difficultly. The traditional access control models couldn’t solve the access process for their design limitations and diversity access policies. Usage control model (UCON) was proposed to strengthen the expression of access control model, but UCON is only a conceptual model. How to use the UCON in access process? It is worthwhile to further study. Extensible access control markup language (XACML) is an

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9

Liu, Jing, Rongchao Liu, and Yingxu Lai. "Risk-Based Dynamic Identity Authentication Method Based on the UCON Model." Security and Communication Networks 2022 (March 31, 2022): 1–13. http://dx.doi.org/10.1155/2022/2509267.

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With the continuous progress of computer technology, static identity authentication technology has encountered challenges in practical applications; in addition, it has deficiencies in continuity and mutability. For these reasons, we propose a risk-based dynamic identity authentication method based on the Usage Control (UCON) model. When authenticating a user, we consider their access rights based on the degree of risk, except in case of password authentication. We propose a risk assessment method, and blockchain technology is used in the scheme to provide a reliable process for risk assessmen

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10

JASIM AL-FARTTOOSI, DAWOOD SALMAN. "Formal model and Policy specification for software defined networks." Journal of Kufa for Mathematics and Computer 3, no. 2 (2016): 55–62. http://dx.doi.org/10.31642/jokmc/2018/030207.

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Software-defined networking SDN is gaining a sharp increase in adoption by very well-known companies Like Google and Microsoft. Currently, the two stands out reliability and security are the most issues that hampering the SDN rapid growth. This paper aims to contribute to this growing area of research by exploring the SDN security issues. Novel approach will be proposed by utilizing the well-known access control approach called theusage control UCON model and also the Flog policy language of software defined networks SDNs. This work will be produced as a formal modelling via high-level abstrac

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11

Chang, Rui, Zhaowen Lin, Yi Sun, and Jie Xu. "MD-UCON: A Multi-Domain Access Control Model for SDN Northbound Interfaces." Journal of Physics: Conference Series 1187, no. 3 (2019): 032091. http://dx.doi.org/10.1088/1742-6596/1187/3/032091.

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12

Gruijter, Dato N. M. "A Note on the Bias of UCON Item Parameter Estimation in the Rasch Model." Journal of Educational Measurement 27, no. 3 (1990): 285–88. http://dx.doi.org/10.1111/j.1745-3984.1990.tb00749.x.

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13

YE, Chun-xiao, and Yi-feng YU. "Safety analysis for UCON_preA model with delegation feature and expression for DBRM0." Journal of Computer Applications 32, no. 12 (2013): 3426–29. http://dx.doi.org/10.3724/sp.j.1087.2012.03426.

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14

Huang, Kun, and Yun Song Jian. "Research on a New Access Control Technology." Advanced Materials Research 765-767 (September 2013): 1858–62. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.1858.

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The term usage control (UCON)[1] is a generalization of access control to cover obligations, conditions, continuity (ongoing controls) and mutability. Traditionally, access control has dealt only with authorization decisions on a subject's access to target resources, and as a consequence of access have not been systematically studied. In this paper we motivate the need for usage control, study a family of ABC models as a core model for usage control and show how it encompasses traditional access control, such as mandatory, discretionary and role-based access control,. In addition, we also disc

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15

MYO, TAKAYUKI, HIROSHI TOKI, and KIYOMI IKEDA. "TENSOR OPTIMIZED SHELL MODEL WITH UNITARY CORRELATION OPERATOR USING BARE INTERACTION FOR LIGHT NUCLEI." Modern Physics Letters A 24, no. 11n13 (2009): 847–50. http://dx.doi.org/10.1142/s0217732309000140.

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We propose a new theoretical approach to calculate nuclear structure using bare nuclear interaction, in which the tensor and short-range correlations are described by using the tensor optimized shell model (TOSM) and the unitary correlation operator method (UCOM), respectively. We compare the obtained results using TOSM+UCOM for 4 He with the rigorous calculation.

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16

Sadek, Nermeen B., Sarah M. Gamal, Basma E. Aboulhoda, Laila A. Rashed, Heba M. Shawky, and Maha M. Gamal El-Din. "The Potential Role of Undercarboxylated Osteocalcin Upregulation in Microvascular Insufficiency in a Rat Model of Diabetic Cardiomyopathy." Journal of Cardiovascular Pharmacology and Therapeutics 25, no. 1 (2019): 86–97. http://dx.doi.org/10.1177/1074248419876632.

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Background: Diabetic cardiomyopathy (DCM) is accompanied by microvascular complications that lead to myocardial dysfunction and heart failure. Most conventional therapies cannot ameliorate the microvascular insufficiency in DCM. In this study, we tested the hypothesis that undercarboxylated osteocalcin (ucOC) may be a new adjuvant therapy against the progression of DCM and its underlying microvascular pathology. Materials and Methods: Diabetes was induced in Wistar rats with a high-fat diet combined with streptozotocin injections, and ucOC was upregulated after warfarin administration in the t

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17

Jiang, Wenyu, Meijiao Lu, Li Zhang, et al. "Optimizing individualized management of patients with ulcerative colitis: Identification of risk factors predicting ulcerative colitis-associated neoplasia." Medicine 102, no. 32 (2023): e34729. http://dx.doi.org/10.1097/md.0000000000034729.

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The risk of developing colorectal neoplasia in patients with ulcerative colitis (UC) is increased. The purpose of this study is to analyze the risk factors of UC-associated neoplasia (UCAN) in UC patients and establish a clinical prediction model. 828 UC patients were included in this retrospective study. 602 patients were in discovery cohort and 226 patients were in validation cohort (internal validation cohort/external validation cohort: 120/106). Clinical and endoscopic data were collected. The discovery cohort was divided into UC group and UCAN group for univariate and multivariate binary

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18

Lacombe, Julie, Omar Al Rifai, Lorraine Loter та ін. "Measurement of bioactive osteocalcin in humans using a novel immunoassay reveals association with glucose metabolism and β-cell function". American Journal of Physiology-Endocrinology and Metabolism 318, № 3 (2020): E381—E391. http://dx.doi.org/10.1152/ajpendo.00321.2019.

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Osteocalcin (OCN) is a bone-derived hormone involved in the regulation of glucose metabolism. In serum, OCN exists in carboxylated and uncarboxylated forms (ucOCN), and studies in rodents suggest that ucOCN is the bioactive form of this hormone. Whether this is also the case in humans is unclear, because a reliable assay to measure ucOCN is not available. Here, we established and validated a new immunoassay (ELISA) measuring human ucOCN and used it to determine the level of bioactive OCN in two cohorts of overweight or obese subjects, with or without type 2 diabetes (T2D). The ELISA could spec

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19

Ardwiansyah, Yogha, Achmad Tjahya Nugraha, and Nunuk Adiarni. "PENERAPAN METODE BUSINESS MODEL CANVAS DAN PETA EMPATI PADA USAHA MIKRO KECIL DAN MENENGAH (UMKM) KEBAB DURIAN UCOK." Niagawan 12, no. 2 (2023): 118. http://dx.doi.org/10.24114/niaga.v12i2.46470.

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The research explores the development of a business model for UMKM Kebab Durian Ucok using business model canvas analysis, empathy maps, and gap analysis. As an MSME, Kebab Durian Ucok plays an important role in the national economy. Understanding the business model, customer needs, and identifying performance gaps is critical to Kebab Durian Ucok's continued growth and competitiveness.The study begins by providing an overview of the challenges faced by Kebab Durian Ucok as MSMEs in the food industry and emphasizing the importance of strategic planning in business. This study provides an overv

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20

MYO, TAKAYUKI, HIROSHI TOKI, and KIYOMI IKEDA. "TENSOR OPTIMIZED SHELL MODEL USING BARE INTERACTION FOR LIGHT NUCLEI." Modern Physics Letters A 25, no. 21n23 (2010): 1985–88. http://dx.doi.org/10.1142/s0217732310000800.

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We propose a new method to describe nuclear structure using bare nuclear interaction, in which the tensor and short-range correlations are described by using the tensor optimized shell model (TOSM) and the unitary correlation operator method (UCOM), respectively.

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21

McAdams, Ryan M., Ronald J. McPherson, Raj P. Kapur, and Sandra E. Juul. "Focal Brain Injury Associated with a Model of Severe Hypoxic-Ischemic Encephalopathy in Nonhuman Primates." Developmental Neuroscience 39, no. 1-4 (2017): 107–23. http://dx.doi.org/10.1159/000456658.

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Worldwide, hypoxic-ischemic encephalopathy (HIE) is a major cause of neonatal mortality and morbidity. To better understand the mechanisms contributing to brain injury and improve outcomes in neonates with HIE, better preclinical animal models that mimic the clinical situation following birth asphyxia in term newborns are needed. In an effort to achieve this goal, we modified our nonhuman primate model of HIE induced by in utero umbilical cord occlusion (UCO) to include postnatal hypoxic episodes, in order to simulate apneic events in human neonates with HIE. We describe a cohort of 4 near-ter

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22

Chun, Pattaraporn T., Ronald J. McPherson, Luke C. Marney, et al. "Serial Plasma Metabolites Following Hypoxic-Ischemic Encephalopathy in a Nonhuman Primate Model." Developmental Neuroscience 37, no. 2 (2015): 161–71. http://dx.doi.org/10.1159/000370147.

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Biomarkers that indicate the severity of hypoxic-ischemic brain injury and response to treatment and that predict neurodevelopmental outcomes are urgently needed to improve the care of affected neonates. We hypothesize that sequentially obtained plasma metabolomes will provide indicators of brain injury and repair, allowing for the prediction of neurodevelopmental outcomes. A total of 33 Macaca nemestrina underwent 0, 15 or 18 min of in utero umbilical cord occlusion (UCO) to induce hypoxic-ischemic encephalopathy and were then delivered by hysterotomy, resuscitated and stabilized. Serial bloo

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McAdams, Ryan M., Bobbi Fleiss, Christopher Traudt, et al. "Long-Term Neuropathological Changes Associated with Cerebral Palsy in a Nonhuman Primate Model of Hypoxic-Ischemic Encephalopathy." Developmental Neuroscience 39, no. 1-4 (2017): 124–40. http://dx.doi.org/10.1159/000470903.

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Background: Cerebral palsy (CP) is the most common motor disability in childhood, with a worldwide prevalence of 1.5-4/1,000 live births. Hypoxic-ischemic encephalopathy (HIE) contributes to the burden of CP, but the long-term neuropathological findings of this association remain limited. Methodology: Thirty-four term Macaca nemestrina macaques were included in this long-term neuropathological study: 9 control animals delivered by cesarean section and 25 animals with perinatal asphyxia delivered by cesarean section after 15-18 min of umbilical cord occlusion (UCO). UCO animals were randomized

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Hu, Linmin, Wei Huang, Guofang Wang, and Ruiling Tian. "Redundancy Optimization of an Uncertain Parallel-Series System with Warm Standby Elements." Complexity 2018 (September 6, 2018): 1–10. http://dx.doi.org/10.1155/2018/3154360.

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The redundancy optimization problem is formulated for an uncertain parallel-series system with warm standby elements. The lifetimes and costs of elements are considered uncertain variables, and the weights and volumes of elements are random variables. The uncertain measure optimization model (UMOM), the uncertain optimistic value optimization model (UOVOM), and the uncertain cost optimization model (UCOM) are developed through reliability maximization, lifetime maximization, and cost minimization, respectively. An efficient simulation optimization algorithm is provided to calculate the objecti

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25

Kumar, Varun, Pradeep Krishna, Masood Hasanabadi, and K. Sathickbasha. "Evaluation of machine learning techniques for the Nd: YAG Laser & TIG welded stainless steel 304." FME Transactions 52, no. 1 (2024): 90–102. http://dx.doi.org/10.5937/fme2401090k.

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Nd: YAG Laser and Tungsten Inert Gas (TIG) welding processes are the most promising joining techniques used for stainless steel (SS) alloys due to their significant weld characteristics. In this study, the effect of two process parameters (weld power and travel speed) on the mechanical properties (ultimate tensile strength and microhardness) of the weldment is investigated. Two different machine learning techniques, namely Adaptive Neuro-Fuzzy Inference System (ANFIS) and Unified Convolutional Neural Network (UCNN) are also evaluated for prediction of mechanical properties and defect detection

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26

Liu, Jia, Feiliang Zhong, and Yue Chen. "UCN-Centric Prognostic Model for Predicting Overall Survival and Immune Response in Colorectal Cancer." Genes 15, no. 9 (2024): 1139. http://dx.doi.org/10.3390/genes15091139.

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Colorectal cancer (CRC), a prevalent malignancy, ranks third in global incidence and second in mortality rates. Despite advances in screening methods such as colonoscopy, the accurate diagnosis of CRC remains challenging due to the absence of reliable biomarkers. This study aimed to develop a robust prognostic model for precise CRC outcome prediction. Employing weighted co-expression network analysis (WGCNA) and Cox regression analysis on data from The Cancer Genome Atlas (TCGA), we identified a panel of 12 genes strongly associated with patient survival. This gene panel facilitated accurate C

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Ismet, Rhahmasari, Rut Novalia Rahmawati Sianipar, Nesha Adelia, et al. "Utilization of Used Cooking Oil from Street Vendor: Recycle and Anti-Oxidant Enrichment with Moringa oleifera leaves." Molekul 19, no. 3 (2024): 503. https://doi.org/10.20884/1.jm.2024.19.3.11023.

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Used cooking oil (UCO) is abundant in Indonesia because of lifestyle of people. Especially UCO from street vendors had very low quality based on its Free Fatty Acid (FFA) content that reached 5.074%. When UCO was deposed into drainage, it would pollute the environment. Low grade UCO from street vendors contained Unsaturated-Fatty-Acid, Saturated-Fatty-Acid, and other hydrocarbons. Recycling UCO to replace edible oil considered more desirable rather than biodiesel since higher added value. FFA was the most undesired compound affecting cooking oil quality. FFA reducing with diluted 0.1 M NaOH 10

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28

Thompson, Anne W., Rachel A. Foster, Andreas Krupke, et al. "Unicellular Cyanobacterium Symbiotic with a Single-Celled Eukaryotic Alga." Science 337 (September 21, 2012): 1546–50. https://doi.org/10.1126/science.1222700.

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Symbioses between nitrogen (N)2–fixing prokaryotes and photosynthetic eukaryotes are important for nitrogen acquisition in N-limited environments. Recently, a widely distributed planktonic uncultured nitrogen-fixing cyanobacterium (UCYN-A) was found to have unprecedented genome reduction, including the lack of oxygen-evolving photosystem II and the tricarboxylic acid cycle, which suggested partnership in a symbiosis. We showed that UCYN-A has a symbiotic association with a unicellular prymnesiophyte, closely related to calcifying taxa present in the fossil record. The partnership is mutualisti

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MYO, TAKAYUKI, KIYOSHI KATŌ, YUMA KIKUCHI, HIROSHI TOKI, and KIYOMI IKEDA. "TENSOR CORRELATION IN He AND Li ISOTOPES BASED ON TENSOR OPTIMIZED SHELL MODEL WITH UNITARY CORRELATION OPERATOR." International Journal of Modern Physics A 24, no. 11 (2009): 2150–58. http://dx.doi.org/10.1142/s0217751x0904573x.

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We show the importance of the tensor correlation on the structures of He and Li isotopes. We develop the tensor optimized shell model (TOSM) to describe the strong tensor correlation of the nuclear force in nuclei. We investigate the exotic structures of 9,10,11 Li based on the 9 Li +n+n model where TOSM is used for 9 Li . The coupling between the tensor correlation in 9 Li and the extra two neutrons emerges Pauli-blocking, which increases the s2 component and develops the halo structure in 11 Li . We further treat the short range repulsion of the nuclear force by the unitary correlation opera

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Fomin, Alexey, Anatolii Serebrov, Mikhail Chaikovskii, Oleg Zherebtsov, Aleksandr Murashkin, and Elena Golubeva. "Plan of NNbar experiment at the WWR-M reactor." EPJ Web of Conferences 219 (2019): 07003. http://dx.doi.org/10.1051/epjconf/201921907003.

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We propose an experiment to search for neutron–antineutron oscillations based on the storage of ultracold neutrons (UCN) in a material trap. This experiment will be competitive due to a new UCN source which is under construction at the NRC “Kurchatov Institute” – PNPI. It is expected to provide UCN densities by 2–3 orders of magnitude higher than at existing sources. The sensitivity of our experiment mostly depends on the trap size and the stored number of UCN. Simulations show that this can be increased by ∼ 10–40 times compared to the best previous experiment, dependent upon a model of neutr

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Naser, Amna, Ahmad Qasem, and Saleh A. Naser. "Mycobacterial infection influences bone biomarker levels in patients with Crohn’s disease." Canadian Journal of Physiology and Pharmacology 96, no. 7 (2018): 662–67. http://dx.doi.org/10.1139/cjpp-2017-0700.

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Patients with Crohn’s disease (CD) have higher risk for osteoporosis following decreased level of osteocalcin. We hypothesize that active inflammation following Mycobacterium avium subsp. paratuberculosis (MAP) infection results in elevation of undercarboxylated osteocalcin (ucOC) and downregulation of active osteocalcin in CD patients and cow-disease model (Johne’s disease). In this study, we measured ucOC, active osteocalcin, and calcium levels in sera from 42 cattle (21 infected with MAP and 21 healthy cattle), 18 CD patients, and 20 controls. The level of ucOC in MAP+ bovine samples was hi

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Martinez-Portilla, Raigam J., Jose R. Villafan-Bernal, Diana L. Lip-Sosa, et al. "Osteocalcin Serum Levels in Gestational Diabetes Mellitus and Their Intrinsic and Extrinsic Determinants: Systematic Review and Meta-Analysis." Journal of Diabetes Research 2018 (December 30, 2018): 1–15. http://dx.doi.org/10.1155/2018/4986735.

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Background. Undercarboxylated osteocalcin (ucOC) increases insulin release and insulin resistance in mice. In humans, evidence is scarce but a correlation of ucOC and total osteocalcin (tOC) with glycemic status markers has been demonstrated. The relationship of ucOC and tOC with gestational diabetes mellitus (GDM) has been even less characterized. Objective. To assess the mean difference of tOC and ucOC serum concentrations among nondiabetic pregnant women and women diagnosed as GDM in the second trimester of pregnancy and to determine the possible intrinsic and extrinsic contributors to this

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Lu, Shan. "Decision-Making Application of the Cloud-Fog Hybrid Model Based on the Improved Convolutional Neural Network in Financial Services in Smart Medical Care." Computational Intelligence and Neuroscience 2022 (August 9, 2022): 1–8. http://dx.doi.org/10.1155/2022/5732379.

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In order to alleviate the “difficulty in seeing a doctor” for the masses, continuously optimize the service process, and explore new financial service processes for admission and discharge, this study proposes a cloud-fog hybrid model UCNN-BN based on an improved convolutional neural network and applies it to financial services in smart medical care. Decision-making applications: this research improves and designs the UCNN network based on AlexNet and introduces small convolution layers to form convolution groups, making the network more adjustable. The network structure is simpler and more fl

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Medlin, Graham, Ekaterina Korobkina, Cole Teander, et al. "External Moderation of Reactor Core Neutrons for Optimized Production of Ultra-Cold Neutrons." Journal of Nuclear Engineering 5, no. 4 (2024): 486–99. http://dx.doi.org/10.3390/jne5040030.

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The ultra-cold neutron (UCN) source being commissioned at North Carolina State University’s PULSTAR reactor is uniquely optimized for UCN production in the former graphite-filled thermal column outside of the reactor pool. The source utilizes a remote moderation design, which is particularly well suited to the PULSTAR reactor because of its high thermal and epithermal neutron leakage from the core face. This large non-equilibrium flux from the core is efficiently transported to the UCN source through the specially designed beam port in order to optimize UCN production at any given reactor powe

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Toki, Hiroshi, Teruaki Myo, and Kiyomi Ikeda. "TENSOR OPTIMIZED SHELL MODEL AND HYPERNUCLEI." International Journal of Modern Physics E 19, no. 12 (2010): 2531–37. http://dx.doi.org/10.1142/s0218301310017046.

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The pion plays an important role for the structure of nucleus and nuclear matter. We propose a new theoretical framework, named the tensor optimized shell model (TOSM) to calculate the tensor interaction together with the unitary correlation operator method (UCOM) for the short range repulsion. We are able to handle the pion exchange interaction directly in the proposed framework. We compare the calculated results for 4 He with the rigorous calculation to show the power of TOSM to treat the tensor interaction. We then discuss the important role of pion in hypernuclei due to excitation of Σ bar

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Rivier, Catherine L. "Urocortin 1 Inhibits Rat Leydig Cell Function." Endocrinology 149, no. 12 (2008): 6425–32. http://dx.doi.org/10.1210/en.2008-0417.

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Corticotropin-releasing factor (CRF) has previously been reported in rat testes in which it inhibits Leydig cells activity. However, recent studies in our laboratory have suggested that some of the effects originally attributed to CRF were instead due to the related peptide Urocortin 1 (Ucn 1) and that this latter hormone, not CRF, was detectable in Leydig cells. We show here that Ucn 1 [a mixed CRF receptor (CRFR) type 1 and CRFR2 agonist] and the CRFR1-selective peptide Stressin 1, but not Ucn 2 or Ucn 3 (both considered selective CRFR2 ligands), significantly blunt the testosterone response

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Díaz-López, Andrés, Mònica Bulló, Marti Juanola-Falgarona, et al. "Reduced Serum Concentrations of Carboxylated and Undercarboxylated Osteocalcin Are Associated With Risk of Developing Type 2 Diabetes Mellitus in a High Cardiovascular Risk Population: A Nested Case-Control Study." Journal of Clinical Endocrinology & Metabolism 98, no. 11 (2013): 4524–31. http://dx.doi.org/10.1210/jc.2013-2472.

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Context and Objective: Because it has been suggested that osteocalcin (OC), an osteoblast-derived hormone, is a new link between bone and glucose metabolism, we tested whether serum carboxylated osteocalcin (cOC) and undercarboxylated osteocalcin (ucOC) levels are independently associated with the development of type 2 diabetes in subjects at high cardiovascular risk. Design, Setting, and Participants: A prospective, nested case-control study was conducted using data from the Prevención con Dieta Mediterránea (PREDIMED) study. We included 153 case subjects with newly diagnosed diabetes and 306

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Gallani, Maria Cecília Bueno Jayme, Roberta Cunha Rodrigues Colombo, Eliane de Araújo Cintra, and Sandra Bruneni Rigacci. "Coleta de dados: a avaliação de um modelo piloto." Revista Latino-Americana de Enfermagem 4, no. 2 (1996): 179–99. http://dx.doi.org/10.1590/s0104-11691996000200012.

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Após o desenvolvimento e implementação de um modelo piloto do instrumento de coleta de dados (ICDP) para Unidade Coronária (UCO), tivemos como objetivos avaliar as considerações dos enfermeiros sobre a aplicabilidade deste instrumento e de sua adequação na UCO do HC-UNICAMP bem como levantar subsídios para contribuir na sua reelaboração. A avaliação, realizada através de um questionário entregue a onze enfermeiros que participaram da implementação do ICDP, mostrou-nos que os enfermeiros consideraram válidos o desenvolvimento e implementação do ICDP, interpretado como adequado em forma e conteú

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Sidhu, Steve, Wolfgang Schreyer, Sean Vanbergen, et al. "Estimated performance of the TRIUMF ultracold neutron source and electric dipole moment apparatus." EPJ Web of Conferences 282 (2023): 01015. http://dx.doi.org/10.1051/epjconf/202328201015.

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Searches for the permanent electric dipole moment of the neutron (nEDM) provide strong constraints on theories beyond the Standard Model of particle physics. The TUCAN collaboration is constructing a source for ultra-cold neutrons (UCN) and an apparatus to search for the nEDM at TRIUMF, Vancouver, Canada. In this work, we estimate that the spallation-driven UCN source based on a superfluid helium converter will provide (1.38 ± 0.02) 107 polarized UCN at a density of 217 ± 3 UCN/cm3 to a room-temperature EDM experiment per fill. With (1.43 ± 0.02) 106 neutrons detected after the Ramsey cycle, t

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Espinoza-Monje, Marcela, Jorge Campos, Eduardo Alvarez Villamil, et al. "Characterization of Weissella viridescens UCO-SMC3 as a Potential Probiotic for the Skin: Its Beneficial Role in the Pathogenesis of Acne Vulgaris." Microorganisms 9, no. 7 (2021): 1486. http://dx.doi.org/10.3390/microorganisms9071486.

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Previously, we isolated lactic acid bacteria from the slime of the garden snail Helix aspersa Müller and selected Weissella viridescens UCO-SMC3 because of its ability to inhibit in vitro the growth of the skin-associated pathogen Cutibacterium acnes. The present study aimed to characterize the antimicrobial and immunomodulatory properties of W. viridescens UCO-SMC3 and to demonstrate its beneficial effect in the treatment of acne vulgaris. Our in vitro studies showed that the UCO-SMC3 strain resists adverse gastrointestinal conditions, inhibits the growth of clinical isolates of C. acnes, and

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NESVIZHEVSKY, V. V., G. PIGNOL, and K. V. PROTASOV. "NANOPARTICLES AS A POSSIBLE MODERATOR FOR AN ULTRACOLD NEUTRON SOURCE." International Journal of Nanoscience 06, no. 06 (2007): 485–99. http://dx.doi.org/10.1142/s0219581x07005073.

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Ultracold and very cold neutrons (UCN and VCN) interact strongly with nanoparticles due to the similarity of their wavelengths and nanoparticles sizes. We analyze the hypothesis that this interaction can provide efficient cooling of neutrons by ultracold nanoparticles at certain experimental conditions, thus increasing the density of UCN by many orders of magnitude. The present analytical and numerical description of the problem is limited to the model of independent nanoparticles at zero temperature. Constraints of application of this model are discussed.

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MYO, TAKAYUKI, HIROSHI TOKI, SATORU SUGIMOTO, KIYOSHI KATŌ, YUMA KIKUCHI, and KIYOMI IKEDA. "A SYSTEMATIC STUDY OF THE TENSOR CORRELATION IN He AND Li ISOTOPES." Modern Physics Letters A 23, no. 27n30 (2008): 2577–80. http://dx.doi.org/10.1142/s0217732308029836.

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We investigate the tensor correlations in He and Li isotopes systematically. We propose the tensor-optimized shell model (TOSM) to describe the strong tensor correlation arising from the bare nuclear force in nuclei. Using TOSM for Li isotopes, we investigate the anomalous structures of 9,10,11 Li based on the 9 Li +n+n model where the 9 Li cluster is described by TOSM. As a result, the couplings between the tensor correlation in 9 Li and the extra two neutrons emerge Pauli-blocking, which naturally increases the s2 component to develop the halo structure in 11 Li . We further describe the sho

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Zeytinoglu, Ugur Erkin, Fatma Gumruk, and Sule Unal Cangul. "A Single-Center Large Cohort of Chronic Neutropenia Patients and a Model for Estimation of Congenital Neutropenias." Blood 142, Supplement 1 (2023): 2541. http://dx.doi.org/10.1182/blood-2023-189775.

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Chronic neutropenia (CrN) is defined as neutropenia lasting longer than 3 months and has various underlying etiologies, including congenital neutropenia (CN). We aimed to determine the underlying etiologies of patients with CrN and define the characteristics at diagnosis suggestive for CN as a final diagnosis. The study included 197 pediatric and adolescent patients who were diagnosed with CrN between 2010 and 2022 in a single-center. Patients with transient neutropenia, splenomegaly, alloimmune, secondary autoimmune, myelodysplastic syndrome and hematological malignancies, other bone marrow f

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Ahmed, Mariyam Shabeena, Siti Aqlima Ahmad, Mohd Yunus Shukor, and Mohd Termizi Yusof. "Statistical Optimisation of Used-Cooking-Oil Degradation by Burkholderia vietnamiensis AQ5-12 and Burkholderia sp. AQ5-13." Processes 10, no. 11 (2022): 2178. http://dx.doi.org/10.3390/pr10112178.

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Used cooking oil (UCO) is a hydrocarbon that causes significant environmental pollution globally. Oil is a difficult pollutant to remove from the environment due to its hydrophobic nature. Bioremediation is preferred over chemical and physical remediation approaches as it is more economical and environmentally friendly. Hence, the search for a microbe with outstanding degrading capability is imperative due to the nature of hydrocarbons as pollutants. The current study evaluates the ability of glyphosate degrader isolates, Burkholderia vietnamiensis AQ5-12 and Burkholderia sp. AQ5-13, to degrad

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TOKI, HIROSHI, TAKAYUKI MYO, and KIYOMI IKEDA. "TENSOR OPTIMIZED SHELL MODEL AND THE ROLE OF PION IN FINITE NUCLEI." International Journal of Modern Physics E 18, no. 10 (2009): 2040–44. http://dx.doi.org/10.1142/s0218301309014251.

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The pion plays an important role for the structure of nucleus and nuclear matter. We propose a new theoretical framework, named the tensor optimized shell model (TOSM) to calculate the tensor interaction together with the unitary correlation operator method (UCOM) for the short range repulsion. We are able to handle the pion exchange interaction directly in the proposed framework. We compare the calculated results for 4 He with the rigorous calculation to show the power of TOSM to treat the tensor interaction.

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Jones, Rebecca C., Kevin M. Lawrence, Scott M. Higgins, Stephen M. Richardson, and Paul A. Townsend. "Urocortin-1 Is Chondroprotective in Response to Acute Cartilage Injury via Modulation of Piezo1." International Journal of Molecular Sciences 23, no. 9 (2022): 5119. http://dx.doi.org/10.3390/ijms23095119.

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Post-traumatic OA (PTOA) is often triggered by injurious, high-impact loading events which result in rapid, excessive chondrocyte cell death and a phenotypic shift in residual cells toward a more catabolic state. As such, the identification of a disease-modifying OA drug (DMOAD) that can protect chondrocytes from death following impact injury, and thereby prevent cartilage degradation and progression to PTOA, would offer a novel intervention. We have previously shown that urocortin-1 (Ucn) is an essential endogenous pro-survival factor that protects chondrocytes from OA-associated pro-apoptoti

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Vanbergen, Sean, Wolfgang Schreyer, Shomi Ahmed, et al. "A spallation target at TRIUMF for fundamental neutron physics." EPJ Web of Conferences 285 (2023): 07004. http://dx.doi.org/10.1051/epjconf/202328507004.

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Ultracold neutrons (UCNs) are a powerful tool for probing the Standard Model at high precision. The TRIUMF Ultracold Advanced Neutron (TUCAN) collaboration is building a new UCN source to provide unprecedented densities of UCNs for experiments. This source will use a tantalum-clad tungsten spallation target, receiving up to 40 µA of 480-MeV protons from TRIUMF’s main cyclotron. The beamline and target were constructed from 2014 to 2016 and operated at beam currents up to 10 µA from 2017 to 2019 as part of a prototype UCN source. We describe the design choices for the target and target-handling

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Merino, J. S., A. García, E. Pastene, A. Salas, K. Saez, and C. L. González. "Lactobacillus fermentum UCO-979C strongly inhibited Helicobacter pylori SS1 in Meriones unguiculatus." Beneficial Microbes 9, no. 4 (2018): 625–27. http://dx.doi.org/10.3920/bm2017.0160.

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Searching for bacterial probiotics active upon Helicobacter pylori continue to be an important clinical challenge because of the increased prevalence of this highly priority pathogen in humans. In this work, we assess the in vivo anti-H. pylori SS1 (cagA+/vacAs2m2+) properties of a previously isolated human gastric probiotic strain Lactobacillus fermentum UCO-979C by using a Meriones unguiculatus (Mongolian gerbil) model. Animals were administered with a saline suspension of L. fermentum UCO-979C or H. pylori SS1 as negative and positive control for H. pylori colonisation controls, prior to as

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Liu, Yihui, Xiaoying Liu, Joshua R Lewis, Kaye Brock, Tara C Brennan-Speranza, and Armando Teixeira-Pinto. "Relationship between serum osteocalcin/undercarboxylated osteocalcin and type 2 diabetes: a systematic review/meta-analysis study protocol." BMJ Open 9, no. 3 (2019): e023918. http://dx.doi.org/10.1136/bmjopen-2018-023918.

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IntroductionThe global burden of type 2 diabetes (T2DM) is steadily increasing. Experimental studies have demonstrated that a novel hormone secreted by bone cells, osteocalcin (OC), can stimulate beta-cell proliferation and improve insulin sensitivity in mice. Observational studies in humans have investigated the relationship between OC and metabolic parameters, and T2DM. Importantly, few studies have reported on the undercarboxylated form of OC (ucOC), which is the putative active form of OC suggested to affect glucose metabolism.ObjectivesWe will conduct a systematic review and meta-analysis

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Liu, Chun-Na, Cui Yang, Xin-Yu Liu, and Shengnan Li. "In vivo protective effects of urocortin on ischemia-reperfusion injury in rat heart via free radical mechanisms." Canadian Journal of Physiology and Pharmacology 83, no. 6 (2005): 459–65. http://dx.doi.org/10.1139/y05-033.

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The aim of this study was to investigate the effects of urocortin (UCN) on oxidative stress and the mechanisms of urocortin on ischemia–reperfusion injury in vivo in the rat model. Thirty-six Sprague–Dawley rats were divided into 6 groups, including sham, control (normal saline solution), UCN1, UCN2, UCN3, and verapamil groups. The left anterior descending coronary artery of all rats except those in the sham group was treated with a 30-min occlusion followed by a 60-min reperfusion. Just before the occlusion, normal saline solution, UCN (5, 10, and 20 µg/kg body mass), or verapamil (1 mg/kg bo

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